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package ch02;

/**
 *
 * @author osa
 */
public interface Tunable {
    public void turnOn();
    public void turnOff();
    public void volumeUp(int inc);
    public void volumeDown(int dec);
    public void searchChannels();
    public void checkAllChannels();
    public void adjustFrequency(int ch, int freq);
}
